Peroral endoscopic myotomy (Z-POEM) vs. flexible endoscopic septotomy for treatment of Zenker diverticulum: preliminary results of international, multicenter, randomized, single-blind, clinical trial - Kaminski, M; Aleksandra, B; Khashab, M A; Roesch, T; Martinek, J; Bialek, A; Demeter, M; Pilonis, N D; Januszewicz, W; Repici, A; Mangiola, F; Jozwa, M; Przybysz, A; Landi, R; Costamagna, G; Familiari, P (Endoscopy, 2025)